using DevExpress.XtraCharts; namespace DevExpress.StockMarketTrader { public abstract class RegressionItem : CheckedIndicatorItem { protected override string Name { get { return IndicatorName + " Regression"; } } } public class LinearRegressionItem : RegressionItem { protected override string IndicatorName { get { return "Linear"; } } protected override Indicator CreateIndicator() { return new RegressionLine(); } } }